FAG NU 2340 EX-M1A-C3 (200x420x138 mm) - Cylindrical Roller Bearing

Industrial Applications and System Integration

The FAG NU 2340 EX-M1A-C3 is a single-row cylindrical roller bearing designed for demanding industrial applications. With dimensions 200 mm bore x 420 mm outer diameter x 138 mm width, this bearing is engineered to handle high radial loads and operate reliably in heavy machinery, gearboxes, drive units and bearing housings. Its “NU” type design allows for axial floating of the shaft relative to the housing, making it ideal for applications where thermal expansion, shaft misalignment or long shafts are present. Featuring an increased-capacity “EX” variant and a precision brass cage (M1A) with C3 internal clearance, this bearing balances performance, reliability and service life.

Technical Advantages & Key Features

• High durability and load capacity: The “EX” designation indicates enhanced load-carrying ability over standard series bearings.

• Axial floating capability: The NU design allows the inner ring to move axially, ideal for long shafts or systems with thermal expansion, making this bearing suitable for use in bearing units and industrial housings.

• Precision construction: The M1A brass cage and C3 internal clearance provide improved movement under heavy load and compensate for thermal growth, vibration or shaft deflection.

• Wide industrial applicability: Suitable for applications in conveyors, presses, heavy gearboxes, mining equipment, power generation and other industrial systems where high radial load, durability and minimal maintenance are critical.

• Ready for B2B procurement: Keywords such as “cylindrical roller bearing”, “industrial bearing”, “bearing unit”, “bearing housing”, and “high durability” align the product description with procurement-focused search queries and technical supply chains.

Technical Specifications

• Product type: Single-row cylindrical roller bearing

• Model: NU 2340 EX-M1A-C3

• Bore (d): 200 mm

• Outer diameter (D): 420 mm

• Width (B): 138 mm

• Design: NU (unflanged inner ring, flanged outer ring) - allows shaft axial movement

• Variant: EX (increased capacity)

• Cage: M1A (two-piece solid brass cage)

• Internal clearance: C3 (larger than normal, for heavy load/thermal applications)

• Typical Applications: Industrial drive trains, heavy machinery, bearing housings, units requiring high load capacity and long service intervals

FAQ - Frequently Asked Questions

Q1: What is the difference between a cylindrical roller bearing and a ball bearing?
A: A cylindrical roller bearing uses rollers instead of balls, which provide a larger contact area and therefore higher radial load capacity. This makes them ideal for heavy industrial applications where ball bearings may reach capacity limits.

Q2: When should I use a bearing with C3 internal clearance?
A: Bearings marked C3 have a greater radial internal clearance than standard. This is beneficial when the application involves thermal expansion, heavy loads, high speeds or significant shaft displacement - typical in industrial environments.

Q3: What does the “NU” designation mean for this bearing?
A: In cylindrical roller bearing nomenclature, “NU” indicates that the inner ring is unflanged while the outer ring has flanges on both sides. This design allows the inner ring to move axially relative to the outer ring - useful in applications with shaft floating motion.

Q4: How do I integrate this bearing into a bearing housing or unit?
A: This bearing is designed for free-floating axial movement and heavy loads, making it suitable for housing units where the shaft can expand or shift. Proper installation involves ensuring alignment, correct housing fit and adequate lubrication for industrial applications.

Q5: Is fast delivery available for this bearing?
A: Yes - this industrial bearing is held in stock and supports 24-hour dispatch, enabling fast procurement for B2B maintenance and production continuity demands.